Hello again Manfred. I really like the look of your razor saw. It appears that it would provide good support for the blade? Is it a favorite of yours?
I have learned to be happy with my Plum Garden DIY Mini Hand Saw Model Craft set，DIY Razor Saw tool Kit with Multifunction Craft Blades
https://www.amazon.com/dp/B01NCW6N6G..._T3REEbQ9KM3GP
But I’m always open to a new tool.